No, square numbers have an odd number of factors.
Every even number has odd and even factors.
Every one of them has an even number of factors.
1 and 2 are common factors to even numbers
No. They have different number of factors
12 is an even number and it is also a composite number because it has more than two factors
No, all the factors of 20 are not even because 5 which is an odd number is a factor of 20. Well, every number has 1 as its factor, so no counting number can have all even factors.
That is actually impossible. This is because every number has two factors ( the number itslef and 1) . If a number is even there will be one more factor, that is 2. So an even number has to have atleast 3 factors.
No. One is a factor of every number.
Every even number but 2. Even numbers have 2 as a factor (by definition), so higher even numbers can be separated into two factors, 2 and some other number. For example, 6 = 2 x 3.
Every number has an even number of factors. If the number is a perfect square, then two of its factors are equal, so the pair looks like a single number.
No. 1 is odd, and is a factor of every number.
No.